<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>数组去重</title>
				<script>
					var arr = [1, 2, 3, 4, 5, 2, 3, 4];
					var newArr = [];
					for (var i = 0; i < arr.length; i++) {
						var bool = true;
						for (var j = 0; j < newArr.length; j++) {
							if (arr[i] === newArr[j]) {
								bool = false;
							}
						}
						if (bool) {
							newArr[newArr.length] = arr[i];
						}
					}
					console.log(newArr);
				</script>
	</head>
			<body>
				<h1>数组去重</h1>
			</body>
</html>
